Rate Of Species Disappearance Is Accelerating

History's Normal Rate Of Species Disappearance Is Accelerating, Scientists Say -- McClatchy News

PHILADELPHIA — Biologist E.O. Wilson once pondered whether many of our fellow living things were doomed once evolution gave rise to an intelligent, technological creature that also happened to be a rapacious carnivore, fiercely territorial and prone to short-term thinking.

We humans can be so destructive that some scientists believe we've now triggered a mass extinction - one that in several hundred years will rival the asteroid impact that killed the dinosaurs.

In some places, a mass extinction is already under way. Haiti, a "hotspot" for plant and animal diversity, may be closest to ecological collapse.

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Mass Extinction Caused by Deadly 'Earth Burp'

The Northern Calcareous Alps, where scientists found evidence of a giant, killing "burp" of methane emitted hundreds of millions of years ago.

From FOX News:

A massive, long-ago extinction was once thought to have been caused by a destructive wave of volcanic activity. Scientists now point their fingers at another culprit.

A giant, deadly “Earth burp.”

Micha Ruhl and researchers from the Nordic Center for Earth Evolution at the University of Copenhagen in Denmark have found that the mass extinction of half of Earth’s marine life over 200 million years ago was likely the result of a giant release of carbon methane in the atmosphere.

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Are We Witnessing The 6th Great Mass Extinction?

Will 75 percent of Earth's species go the way of the dodo?
CREDIT: Dreamstime

Humans On Verge Of Causing 6th Great Mass Extinction -- Live Science

Are humans causing a mass extinction on the magnitude of the one that killed the dinosaurs?

The answer is yes, according to a new analysis — but we still have some time to stop it.

Mass extinctions include events in which 75 percent of the species on Earth disappear within a geologically short time period, usually on the order of a few hundred thousand to a couple million years. It's happened only five times before in the past 540 million years of multicellular life on Earth. (The last great extinction occurred 65 million years ago, when the dinosaurs were wiped out.) At current rates of extinction, the study found, Earth will enter its sixth mass extinction within the next 300 to 2,000 years.

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My Comment: The data speaks for itself .... we are experiencing the 6th Great Mass Extinction

What If To Do If A Huge Asteroid Was Going To Slam Into Earth?

City Tech student Thinh Lê with the apparatus he built to measure the optical transmission of meteorite samples. (Credit: Michele Forsten)

Asteroid Deflection: What If A Huge Asteroid Was Going To Slam Into Earth? -- Science Daily

ScienceDaily (Jan. 31, 2011) — So you think global warming is a big problem? What could happen if a 25-million-ton chunk of rock slammed into Earth? When something similar happened 65 million years ago, the dinosaurs and other forms of life were wiped out.

"A collision with an object of this size traveling at an estimated 30,000 to 40,000 mile per hour would be catastrophic," according to NASA researcher and New York City College of Technology (City Tech) Associate Professor of Physics Gregory L. Matloff. His recommendation? "Either destroy the object or alter its trajectory."

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My Comment: A massive asteroid strike on the earth .... that for sure will make my day.

Volcanoes Wiped out Neanderthals, New Study Suggests

The Semeru volcano in Indonesia. New research suggests that climate change following massive volcanic eruptions drove Neanderthals to extinction and cleared the way for modern humans to thrive in Europe and Asia. (Credit: iStockphoto)

From Science Daily:

ScienceDaily (Oct. 7, 2010) — New research suggests that climate change following massive volcanic eruptions drove Neanderthals to extinction and cleared the way for modern humans to thrive in Europe and Asia.

The research, led by Liubov Vitaliena Golovanova and Vladimir Borisovich Doronichev of the ANO Laboratory of Prehistory in St. Petersburg, Russia, is reported in the October issue of Current Anthropology.

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